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This article provides instructions to use Fiddler to collect HTTPS traffic to troubleshoot Microsoft Entra ID apps.
Collect HTTPS traffic
Download and install Fiddler on the device that's used to reproduce the problem.
Note
Fiddler is third-party software, not owned by Microsoft.
On the Tool menu, select Options.
On the HTTPS tab, select Decrypt HTTPS Traffic. If you're prompted to install the Fiddler certificate, select Yes.
Restart Fiddler.
Prepare your environment for traffic collection. Depending on the type of application you're troubleshooting, follow these steps:
For browser-based applications:
Use private browsing mode or clear the browser cache on the device that you'll use for testing. This action makes sure that any outdated or unnecessary files from previous sessions are cleared. It also lets the web app load the latest versions of essential files, such as JavaScript and CSS stylesheets. Having the latest files is especially important when you test changes or updates to the web app because it prevents old cached files from interfering with the current version.
For non-browser-based applications:
Start the client application that you're testing.
Reproduce the issue. You should see HTTPS traffic appearing in the Fiddler window.
On the File menu, select Save > All Sessions to save the sessions as SAZ files.
Third-party information disclaimer
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
Contact us for help
If you have questions or need help, create a support request, or ask Azure community support. You can also submit product feedback to Azure feedback community.